Adding-machine.



F. c. RINSCHE.

ADDING MACHINE.

APPLICATION FILEQ AUG 3- 1913' Patented May 11, 1915..

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F. C. RINSCHE.

ADDING MACHINE. APPLICATION FILED AUG. 18. 1913.

Patented May 11, 1915.

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ADDING MACHINE.

APPL c 1,138,793. ATIOIN man AUG 18 1913 Patented May 11, 1915' 3 SHEETS-SHEET 3.

25d IMILIEILIMIIMIII /6 UNITED STATES PATENT oF IoE.

FRANK G. RINSCHE, OF DETROIT, MICHIGAN, ASSIGNOR TO BURROUGHS ADDING- MACHINE COMPANY, OF DETROIT, MICHIGAN, A CDRPORATION OF MIQHIG AN.

ADDING-MACHINE.

Specification oiLetters Patent.

Patented May 11, 1915.

Application filed August 1a, 1913. Serial No. 785,375.

T 0 all ie/1.0m it may concern:

Be it known that I, FRANK-G.- IhNsoHn, a citizen of the United States, residing at Detroit, in the county of Wayne and State of' Michigan, have invented certain new and useful Improvements in Adding-Machines, of which the following is a specification.

The present invention relates to that general class of adding machines in which registering comes about as a result of manipulation of numbered keys as distinguished from that other general class in which manipulation of numbered keys is preliminary to further manipulation such as the pulling of a handle or coupling up a motor, though the present invention does not pertain to those machines of the first-mentioned class wherein the registering power is derived from finger pressure-but to the type of ma chine wherein the power for effecting registrations is derived from another source under control of the keys. For an example of this type of machine, reference may be had to Patent No. 926,151 issued J une 29, 1909,

upon the invention of Jesse G. Vincent. \Vhile a desideratum in such employment of extraneous power is to relieve the user of the machine from the work of supplying power through finger pressure to effect operations, there is another purpose, and perhaps a paramount one, to wit, that of increasing the speed capacity of the machine, and my present invention has been Worked out more especially with a view to still further increasing the speed possibilities in the use of machines of this character. In furtherance of this purpose, I provide a form of means for effecting registrations under key control, which I believe to be especially well calculated to accommodate the speediest of manipulations in successive play of keys in the running of a list of items or in the performance of calculations. Thus, I do away altogether with reciprocating actuators for the several registering wheels and employ rotary actuators which move always in the samedirection so that the operator is not required to await the return to normal of register wheel actuating elements before again manipulating the numbered keys.

In the form of embodiment of'my invention here disclosed, I employ actuating wheels frictionally driven by a constantlyrunning motor and carrying stop pins adapted to be selectively setby depression of numbered keys, the stop pins so set meas uring the advance of the wheel through coaction with a fixed stop. Incidental to the setting of a stop pin by depression of a numbered key, the stop pin set in the previous operation is withdrawn or restored so as to release the wheel and permit of its being advanced through frictional driving connection with the motor until the newly-set stop pin coacts with the fixed stop Preferably the release of-the wheel does not occur during the initial stroke of the key and not until the key is nearly back to normal. This has the advantage of guarding against registering actuation of parts under incomplete manipulatlon of keys and also insures against lnterference with the proper movement of registering elements by unduly prolonging represents in longitudinal yertical section a.

machine embodying the invention; Fig. 2 is a partial plan view of the same with the casing broken away; Fig. 3 is a similar view illustrating the effect of depressing a key; Fig. 4 is an enlarged side elevation of one of the actuating wheels partly broken away to show its interior construction; Fig. 5 is a cross section of said wheel taken on a line 5 5 of Fig. 4; Fig. 6 is a fragmentary sectional view on a still larger scale including part of the actuating wheel and the fixed stop with which its pins coact; and Figs. 7, 8 and 9 are similar views illustratingdiif'erent stages in an operation, these views including the stop pin restoring element and one of the key-actuated stop pin setting elements.

Referring first to Fig. 1, reference numeral 2 designates the stems of a series of bail comprises an upperhorizontal arm 22 supported by tie-rods 5. There is pivoted to each key stem the rearwardly-extending extending arms being irregular in contour so as to economize space and avoid an inter ference between them or with the cross-rods 6 on which these bell-crank levers are pivoted.-.

The several rods or bars 7 extend horizontally toward the rear of the machine and their rear-portions are given a right-angle twist to provide for their being pivotally coupled respectively with another series of bell-crank levers lying one above another in horizontal planes. These latter bellcrank levers comprise relatively short arms 8 pivotally connected to said bars and longer arms 8 of varying length and shape such as to bring their end portions 8 into radial relation to the associated actuating wheel which carries the stop pins and will presently be described in detail. The end portions of saidbell-crank arms overlie the side .of the wheel and a section of'the stop pins thereof so that said pins may be selectively set by depression of the keys, it being obvious that depression of a key rocks the connected bell-crank 66 and through the medium of the connected rod or bar 7 rocks one of the bell-cranks 8-8 throwing its end portion 8 toward the side of the wheel. The bellcranks 88- arejournaled upon a vertical rod 91'with interposed spacing col-- lars 9*, and are normally retracted by springs 8 which connect their arms 8 respectively with a vertical rod 10, the latter and the rod 9 being held at their upper ends in a horizontal frame plate 11 and at their lower ends in a base plate 12.

The wheel above-mentioned is composed of a pair of disks 16 and 17 and an interior band 18 (Fig. 5) united to the disks, and the latter are perforated in alinement and in circulariseries outwardly beyond the band to accommodate the stop pins 19. The latter are adapted to slide through the perforations so as to project from the left-hand'side of the wheel for cooperation with a fixed stop to limit the turning of the wheel. Normally the pins project from the opposite or right-hand side of the wheel except for the one which is restraining the wheel (see Fig. 2), and the bell-crank arm-ends. 8 stand ready to project any one of a series of nine adjacent ones of thesestop pins. Of course the previously-projected pin must be with drawn before the wheel can advance and to this end I employ a bail common to the se ries of keys and adapted to be rocked by any one of the bell-crank arms 8*. Said ing the arm-end 22 clear of the previously (Fig. 1) secured to a vertical rock shaft 23 (journaledin the frame plates 11 and 12), a lower horizontal arm 22*, and a crossrod 22 extending adjacent the hell-crank arms 8. A spring 22 connects this lower arm of the bail with the rod 10 and holds the bail normally retracted in contact with a stop stud 24 (Fig. 2) ready to be acted upon by any one of the bell-crank arms 8. There is formed integral with the lower bail arm 22 as a rearwardly-extending branch thereof, an arm 22 which overlies the lefthand side of the actuating wheel and has an upturned end portion 22 to act upon the projected stop pin of the wheel. Normally the said upturned end 29% of said arm stands forward of said projected stop pin as shown in Figs. 1, 2 and 7 and against the front inclined side of a fixed stop which'is in the form of a lug 25 rising from a base 25 fastened to the frame plate 12 (Fig. 1). The wheel is blocked by the engagement of the projected stop pin with this upturned end of the arm and the latter is backed up by said stop lug. The purpose of having the pro jected pin encounter the upturned end of the arm instead of the front of the stop lug will presently appear, this having to do with the timing of release of the Wheel. It will now be clear that depression of a key, besides shifting one of the stop pins so as to haveit project from the left-hand side of the. wheel, rocks the bail against-the stress of its spring :22. This has the effect of swing-- 1'00 projected stop pin, as shown in .Figs. 3' and 8. Thereupon the wheel advances slightly by reason of the frictional drive connection with the motor hereinafter described, the previously-projected stop pin coming up against the stop lug 25 as shown in Figs. 3. and 8, its end then being in line with the side edge of the arm-end. Upon release of the key and its return to normal underactuation of the spring 8, augmented by the spring 22, the bail obviously swings back to normal. Thus, the arm end 22 acts against the left-hand end of the previouslyprojected pin and forces it back to the position illustrated in Fig. 9. This is not relied upon to completely retract the pin clear of the stop lug 25 but the latter is formed with a beveled edge 25 adjacent the wheel so that before the key is fully restored the wheel will be released, the retraction of the said stop pin being completed by the camming action between said beveled edge of the stop lug and the end of the stop pin which is also preferably given a slight bevel.

By reason of the timed release .of the wheel in the manner above explained, the bell-crank arm 8 which has been displaced is sure to restore before the Wheel starts to turn (except for the very slight advance before mentioned) and so is prevented from tion of the wheel to effect the registration interfering with the turning of the latter through encounter of any of its stop pins with said arm where theyprotrude from the right-hand side of the wheel. Then the release of the wheel prior to the complete restoration of the key (through the coaction of the beveled edge of the stop lug and the left-hand end of the pin) provides for acwhile the key is completing its return movement and this action is so speedy, due to the driving connections between the wheel and 'the motor presently to be described, that it is over practically simultaneously with the complete restoration of the key and the latter can be immediately depressed again or another key in the same order can be so depressed.

In order to guard agalnst any accidental shifting of the stop pins in the wheel and to insure their complete shift, I construct them with encircling ribs 19 and surround the series with a pair of coiled springs 26 groove 30, and driving collars 31 are engaged with this spline-groove, there being one such collar for each wheel and seated between the disks 1617 (Fig. 5). Four radial equidistant arms 32 are screwed into the collar and they extend between blocks 33 occupying substantial quadrants of the wheel within the band 18. They are loose and designed. to act under the influence of centrifugal force against this band and through frictional engagement therewith rotate the wheel.

The shaft 30 is geared to a motor (preferably an electric motor) generally designated by the numeraljit), the connection being preferably through the medium of a band 42 running over pulleys 43 and 4.4: on the armature shaft and the shaft 30 respectively as shown in Figs. 2 and 3. The motor is runat h'i'gh speed sp that the friction blocks 33 are constantly urged outwardly by centrifugal force into frictional contact with the interior of the wheel band 18 and whenever the wheel is free will ,drive the same but of course when thewheel is blocked (by the engagement between the stop lug 25, arm end 22 and wheel stop pin 19 as gefolre described), the blocks will slip on the The registering mechanism actuated'by the pin-wheels may be of any well-known or suitable character. In the present instance vI have illustrated the disks 17 of said pin wheels as cut with gear teeth so as to con: stitute gear wheels and these mesh with intermediate gear wheels in a supplemental frame 51 located in a rear raised portion of the casing. The gear wheels 50 mesh in turn ,With gear wheels 53 supported in said supplemental frame and compounded with smaller gear wheels 54 which mesh with gear wheels 55 the latter corresponding with wheels designated L in the Horton Patent No. 1,016,501 issued February 6, 1912. Through planetary gearing suclnasillustrated in said Hort-on patent, these gear wheels 55 rotate'the numeral wheel 60, and carrying or transferring between wheels may be brought about through the same sort of means as illustrated in said Horton patent involving the stepping of sun gears of the planetary gearing.

It will be seen that the above-described.

mechanism is well calculated to thoroughly fulfil the objects primarily stated though it.

connected with said keys respectively; and

a combined wheel-stopping and wheel-stoppin-restoring member common to the keys.

2. In a machine of the class described, the combination of a wheel havin a series of settable stop pins; means tending to rotate said wheel; a fixed stop to coact with any one of said wheel-stop-pins; a series of keys; a series of wheel-stop-pin setting members operatively connected with said keys respectively; and a combined wheel stopping and wheel-stop-pin-restoring member common to the keys. D

3. In a machine of the class described, the combination of a wheel having a series of settable stop pins; means tending to rotate said wheel; a fixed stop to coact with any one of said wheel-stop-pins; a series of keys; a seriesof wheel-stop-pin-setting members operatively connected with said keys respectively; and a wheel-stop-pin-restoring member common to the keys and normally wheel-stop-pm and the fixed stop and coacting with the wheel-stop-pin-setting members any one of which displaces said restoring member upon depression of a key.

5. In a machine of the class described, the combination of a wheel having a series of settable stop pins; means tending to rotate said wheel; a fixed stop to coact with any one of said wheel-stop-pins; a series of keys; a series of wheel-stop-pin-setting members operatively connected with said keys respectively; a wheel-stop-pin-restoring member; normally interposed between the set wheel-stop-pin and the fixed stop and coacting with the wheel-stop-pin'setting members any one of which displaces said restoring member upon depression of a key; and a spring applied to said restoring member to retract it upon release of the depressed key and cause it to restore the stop-pin; substantially as described.

6. In a machine of the class described, the

combination of a wheel having a circular series of laterally-shiftable stop-pins; means tending to rotate said wheel; a fixedstop to coact with any one of said pins; a restoring member normally interposed between said fixed stop and the shifted pin; pinshifting members adapted to displace said restoring member; and keys operatively connected to said shifting members respectively.

7 In a machine of the class described, the

combination of a wheel having a'circular series of laterally-shiftable stop-pins; means tending to rotate said wheel; a fined stop to coact with any one of said pins; a restoring arm normally interposed between said fixed stop and the shifted pin; a pivoted bail unified with said arm and spring-held; a series of spring-held levers for shifting pins respectively and adapted to displace said bail and restoring arm; and a series of keys operatively connected to said levers respectively. n

8. In a machine of the class described, the combination of a wheel having a circular series of laterally shiftable stopins; means tending to rotate said wheel; a liked stop. to coact with any one of said pins; a restoring arm normally interposed between said fixed stop and the shifted pin; a pivoted bail unified with said arm and spring-held; a series of spring-held bell crank levers for shifting pins respectively and adapted to displace said bail and restoring arm; pull-rods coupled to said bell-crank levers respectively; another series of bell crank levers coupled to said rods respectively; and depressible keys coupled respectively to the levers of said other series.

FRANK O. RINSCHE.

Witnesses:

R. W. FAIROHILD, R. S. MIELERT.

I Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01' Patents,

Washington, D. G. 

